Rated 4 out of 5 by ProfessorB Great microphone but terrible battery life.
Overall works really well, easy to set up and flawless receptions, really makes a big difference for recording lectures. The big problem is battery life, brand new Alkaline batteries will last 70-90 minutes which means you must change batteries before every 1 hour recording session. Gets a bit expensive and there is no way to know how much microphone time remains. A dead receiver or microphone will result in no sound being recorded at all.
April 25, 2011

Rated 5 out of 5 by icfguy Perfect little microphone
I have used this mic for over 100 YouTube videos, a few weddings and other training's. In 3 years it has not let me down. During one wedding I placed the mic in a tree above the ceremony and the video camera 250 feet away on the roof of a house. It recorded the entire event with excellent sound. Sure it uses battery but for what it does it is worth it. Used on Nikon P7000, P7700 and Canon HFM31. I'm looking forward to the new model coming out that will attach to a hotshoe because it will allow me to upgrade to almost any camera that does not have a mic in port.
October 20, 2014

Rated 1 out of 5 by Brett Horrible purchase
I bought this to assist in filming my wedding. I had tested out the microphone several times prior to the wedding, and when my wife and I went back to look at our footage, there was no audio. Just a faint buzzing sound. We are so disappointed. There are no words.
July 24, 2013